scholarly journals Gas adsorption and light interaction mechanism in phosphorene-based field-effect transistors

2020 ◽  
Vol 22 (10) ◽  
pp. 5949-5958 ◽  
Author(s):  
Manthila Rajapakse ◽  
George Anderson ◽  
Congyan Zhang ◽  
Rajib Musa ◽  
Jackson Walter ◽  
...  

Phosphorene-based field effect transistors are fabricated and are shown to be highly sensitive gas and photodetectors. The sensing mechanism is explained using a Schottky barrier model at the phosphorene/metal contact interface.

2003 ◽  
Vol 2 (3) ◽  
pp. 175-180 ◽  
Author(s):  
D.L. John ◽  
L.C. Castro ◽  
J. Clifford ◽  
D.L. Pulfrey

Science ◽  
2018 ◽  
Vol 362 (6412) ◽  
pp. 319-324 ◽  
Author(s):  
Nako Nakatsuka ◽  
Kyung-Ae Yang ◽  
John M. Abendroth ◽  
Kevin M. Cheung ◽  
Xiaobin Xu ◽  
...  

Detection of analytes by means of field-effect transistors bearing ligand-specific receptors is fundamentally limited by the shielding created by the electrical double layer (the “Debye length” limitation). We detected small molecules under physiological high–ionic strength conditions by modifying printed ultrathin metal-oxide field-effect transistor arrays with deoxyribonucleotide aptamers selected to bind their targets adaptively. Target-induced conformational changes of negatively charged aptamer phosphodiester backbones in close proximity to semiconductor channels gated conductance in physiological buffers, resulting in highly sensitive detection. Sensing of charged and electroneutral targets (serotonin, dopamine, glucose, and sphingosine-1-phosphate) was enabled by specifically isolated aptameric stem-loop receptors.


Author(s):  
Fengben Xi ◽  
Yi Han ◽  
Andreas Tiedemann ◽  
Detlev Grutzmacher ◽  
Qing-Tai Zhao

2020 ◽  
Vol 11 (4) ◽  
pp. 1466-1472 ◽  
Author(s):  
Qijing Wang ◽  
Sai Jiang ◽  
Bowen Zhang ◽  
Eul-Yong Shin ◽  
Yong-Young Noh ◽  
...  

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